FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * Weili Dai & Sehat Sutardja   2. Issuer Name and Ticker or Trading Symbol MARVELL TECHNOLOGY GROUP LTD [MRVL] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Executive Vice President & CEO (Last) (First) (Middle) 700 FIRST AVENUE 3. Date of Earliest Transaction (Month/Day/Year) 04/01/2005 (Street) SUNNYVALE, CA 94089 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 04/01/2005   S   12,212 D $ 38.6 10,526,667 I By Sutardja Family Partners (1) Common Stock               28,236,158 (2) D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Stock Option (Right to Buy)

$ 12.005

(3)

06/06/2012

Common Stock

200,000 (3)

200,000 (3)

D

Stock Option (Right to Buy)

$ 12.005

(4)

06/06/2012

Common Stock

400,000 (4)

400,000 (4)

D

Stock Option (Right to Buy)

$ 18.25

(5)

12/26/2013

Common Stock

2,000,000 (5)

2,000,000 (5)

D

Stock Option (Right to Buy)

$ 18.25

(6)

12/26/2013

Common Stock

3,000,000 (6)

3,000,000 (6)

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Weili Dai & Sehat Sutardja 700 FIRST AVENUE SUNNYVALE, CA 94089		X	Executive Vice President & CEO
Sehat Sutardja & Weili Dai 700 FIRST AVENUE SUNNYVALE, CA 94089	X	X	CEO / Executive Vice President

Signatures

Ms. Weili Dai & Dr. Sehat Sutardja		04/05/2005
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Ms. Weili Dai and Dr. Sehat Sutardja are the general partners of The Sutardja Family Partners, a California family limited partnership.
(2)	These securities are jointly owned by Ms. Weili Dai and Dr. Sehat Sutardja who are members of a "Group" for purposes Section 13(d) of the Exchange Act.
(3)	This Stock Option (Right to Buy) of 200,000 shares which vests as follows: 25% on 06/06/03, and 4,166.66 shares per month from 07/06/03 - 06/06/06. Options become exerciseable as they vest. This Stock Option (Right to Buy) is owned directly by Ms. Weili Dai and indirectly by her spouse, Dr. Sehat Sutardja.
(4)	This Stock Option (Right to Buy) of 400,000 shares which vests as follows: 25% on 06/06/03, and 8,333.32 shares per month from 07/06/03 - 06/06/06. Options become exerciseable as they vest. This Stock Option (Right to Buy) is owned directly by Dr. Sehat Sutardja and indirectly by his spouse, Ms. Weili Dai.
(5)	This Stock Option (Right to Buy) of 2,000,000 which vests as follows: 25% on 12/26/04, and 41,666 per month from 01/26/05 - 12/26/07. Options become exerciseable as they vest. This Stock Option (Right to Buy) is owned directly by Ms. Weili Dai and indirectly by her spouse, Dr. Sehat Sutardja.
(6)	This Stock Option (Right to Buy) of 3,000,000 shares which vests as follows: 25 % on 12/26/04, and 62,500 shares per month from 01/26/05 - 12/26/07. Options become exerciseable as they vest. This Stock Option (Right to Buy) is owned directly by Dr. Sehat Sutardja and indirectly by his spouse, Ms. Weili Dai.

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